CN107031391A - Compact vehicle transmission system - Google Patents
Compact vehicle transmission system Download PDFInfo
- Publication number
- CN107031391A CN107031391A CN201611146253.5A CN201611146253A CN107031391A CN 107031391 A CN107031391 A CN 107031391A CN 201611146253 A CN201611146253 A CN 201611146253A CN 107031391 A CN107031391 A CN 107031391A
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- CN
- China
- Prior art keywords
- differential mechanism
- ring gear
- gear
- power
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/344—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear
- B60K17/346—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear the transfer gear being a differential gear
- B60K17/3467—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear the transfer gear being a differential gear combined with a change speed gearing, e.g. range gear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
- B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/344—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/344—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear
- B60K17/346—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear the transfer gear being a differential gear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0806—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts
- F16H37/0813—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts with only one input shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/06—Differential gearings with gears having orbital motion
- F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
- F16H48/40—Constructional details characterised by features of the rotating cases
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Retarders (AREA)
Abstract
A kind of vehicle transmission system, including with differential mechanism（3）Speed changer（11）, differential mechanism（3）Installed in case of transmission（7）In, the differential mechanism（3）With differential mechanism support（3a）Ring gear is transmitted with power（2）, power transmission ring gear（2）Installed in differential mechanism support（3a）It is upper or with differential mechanism support（3a）Integrally formed, the vehicle transmission system also includes having little gear（4）Power transfer unit（8）, little gear（4）It is rotatably installed in case of transmission（7）In, and directly transmit ring gear with power（2）Engagement.The invention provides a kind of greater compactness of vehicle transmission system assembly, it includes the space-minimized construction for occupying existing part, and especially provides power transfer unit（8）, power transfer unit makes setting more compact.
Description
Technical field
The present invention relates to the power transfer unit for motor vehicle powertrain, and especially, but not exclusively, it is related to bag
Include the power train and power transfer unit of the compact arrangement of differential mechanism support and power transmission ring gear.
Background technology
Motor vehicle is typically set to two-wheel drive or a11wheel drive（Usually four-wheel drive）.In two-wheel drive configuration, lead to
Cross front axle and two front-wheels or driven by rear axle and two trailing wheel transmission.In some cases, motor vehicle can include can
The four-wheel drive assembly of selection, wherein vehicle include being connected to the permanent two-wheel drive configuration of one of axle, alternatively, can
So that wheel of the power connector to another axle will be driven.
Because modern automotive must onboard support more technologies and associated equipment, it is necessary to make existing power train
It is compacter, to control the overall size and weight of vehicle.
, it is known that addition is connected to the power transfer unit of front wheel drive transmission（PTU）, driving rear axle, PTU is connected to
The support bar of rear axle and the transmission coupling of front axle and rear axle together with can be made by front-wheel drive by support bar（FWD）Vehicle is fitted
Answer a11wheel drive（AWD）.
In one kind is set, the differential mechanism of front wheel drive transmission is used to drive independent outside " bolt "（“bolt
on”）Power transfer unit.With the complexity of the Vehicular systems such as processing final vacuum, emission control, hybrid powertrain
The increase of property, the encapsulated space for a11wheel drive part becomes to be of great rarity.Therefore, greater compactness of power transfer unit
（PTU）To be beneficial.
The content of the invention
According to an aspect of the present invention there is provided a kind of vehicle transmission system, it includes the speed changer with differential mechanism, described
Differential mechanism is arranged in case of transmission, and the differential mechanism has differential mechanism support and power transmission ring gear, and the power is passed
Pass ring gear on differential mechanism support or integrally formed with differential mechanism support.Vehicle transmission system may also include with small tooth
The power transfer unit of wheel, the little gear is rotatably installed in case of transmission.The little gear can be directly with moving
Force-transmitting ring shape gear is engaged.
There is provided a kind of set being used for another axle that vehicle is delivered to from drive shaft is driven according to another aspect of the present invention
Part, the external member includes the speed changer with differential mechanism, and the differential mechanism is arranged in case of transmission, and the differential mechanism has
Differential mechanism support and power transmission ring gear, the power transmission ring gear are arranged on differential mechanism support or and differential mechanism
Support is integrally formed.
The external member may also include the power transfer unit with little gear, and the little gear is rotatably installed in transmission case
In body.The little gear can be engaged directly with power transmission ring gear.
The invention provides a kind of greater compactness of vehicle transmission system assembly, the space that it includes occupying existing part is minimum
The configuration of change, and the greater compactness of differential mechanism of setting and power transfer unit are especially provided.
Power transmission ring gear is arranged on differential mechanism support or had with the integrally formed setting of differential mechanism support can
To reduce the advantage in the space that power transmission ring gear and differential mechanism support are occupied, and this set passes through in differential mechanism branch
The need for saving single driving part between frame and power transmission ring gear, further reduce what power transfer unit was occupied
Space.Another benefit for saving other driving part is that these parts necessarily will be by power unit（For example, internal combustion engine）Production
Raw relatively noticeable effort is transferred to driving wheel.Power transmission ring gear is attached into differential mechanism support means must be by it
The quantity for transmitting the part of power is reduced, and the tooth of power transmission ring gear means with the close of differential mechanism support
The tension force being applied on differential mechanism bracket bearing is reduced.
As described above, power transmission ring gear can be integrated with differential mechanism support.This arrangement provide with consistent
And the homogeneous texture of the mechanical performance of predictable volume.In such embodiments, the tooth of power transmission ring gear can be with shape
Into on the side in differential mechanism support, also, in use, it is configured to engage with the tooth that power transmits little gear.
Power transmission ring gear can be directly mounted to the differential mechanism ring gear that is arranged on differential mechanism support, or with
It is integrally formed.Differential mechanism ring gear can be, for example, helical annular gear.
In one embodiment, power transmission ring gear can be directly connected to differential mechanism ring gear so that two
Gear is orientated parallel.In the configuration, differential mechanism ring gear and power transmission ring gear will have identical rotary shaft
And substantially press close to each other, rotated in parallel plane.
In one embodiment, power from power unit is delivered to differential mechanism support by speed changer, and is therefore delivered to
Differential mechanism ring gear.Then, differential mechanism ring gear driving power transmission ring gear.Power transmission ring gear is positioned to
Engaged with power transmission little gear, power transmission little gear can be transmitted with differential mechanism support, differential mechanism ring gear and power
Ring gear is equally arranged in identical case of transmission.Power transmission little gear is configured to work as transmits annular tooth by power
Rotated during wheel drive.The rotation, which is transferred to, is attached the support bar that power transmits little gear.Driving is transferred to by the support bar
Another axle of vehicle.
Alternatively, differential mechanism ring gear is connected directly to power transmission ring gear so that the combination of two gears is wide
Summation of the degree no more than its respective width.The positioning of gear and size are important, to reduce the space of occupancy and to increase use
The free space of other parts around vehicle transmission system.
Can select power transmit ring gear diameter, with power transmit ring gear and power transmission little gear it
Between produce desired gear ratio.The ratio of regulation power transfer unit has the effect for redistributing highest torque level, and
Change the highest torque level applied in power train.This machine for maximizing efficiency and making torque loads be maintained at vehicle part
In the tool limit.
Alternatively, power transmission ring gear is tapering annular gear.Tapering annular gear is provided and is used as dynamic force-transmitting ring
Shape gear, which has, to be optimized（What power transmission little gear and support bar were connected）The advantage of work angle.
Alternatively, power transmission ring gear is hypoid ring gear.Hypoid ring gear is provided（Quasi- hyperbolic
Face type tapering annular gear）This have the advantage that little gear positioning can be in gear centre line as power transmission ring gear
On or below offset.This causes little gear to be relatively large in diameter.This set can make the life-span longer and power transmission ring gear
Engagement between power transmission little gear is smoother, and can also adjust relative gear position to overcome encapsulation to limit.
In superincumbent explanation, differential mechanism support is described as to be located at vehicle front（That is, front axle）.However, differential mechanism branch
Frame can be located on any axle of vehicle or at any axle of vehicle, and can be delivered to power separately from the axle
One axle.
Alternatively, vehicle transmission system can be rendered as a part for system or can be arranged on be configured to front-wheel drive or after
External member in the vehicle of wheel drive, so as to for example, vehicle is changed into four-wheel drive.
Alternatively, the vehicle for being integrated with vehicle transmission system assembly can be lorry or other commerial vehicles.Commerial vehicle is
It is of special interest, because it is generally mass produced to standardized size.Then, according to its commercial function, for specific
Business proceeds a large amount of modifications.Embodiments of the invention can be revised as with permanent or optional by two-wheel drive van
Implement in the case of the four-wheel drive selected.
As set forth above, it is possible to compact to construct by the way that power transmission ring gear is directly mounted into differential mechanism ring gear
Power transfer unit.For example, differential mechanism support can include radial flange.The radial flange can be poor in side support helix
Fast device ring gear, and use appropriate fastener support power transmission ring gear in opposite side.According to concrete application
It is required that, power transmission ring gear can also be separately mounted on differential mechanism support with differential mechanism ring gear.In a reality
Apply in example, the power transmission that power transmission ring gear driving is appropriately mounted at the matching in front wheel drive transmission housing is small
Gear, front wheel drive transmission housing has appropriate spring bearing, oil sealing and support bar driving flange.For example, power is transmitted
Little gear may be mounted in the differential mechanism holder part of case of transmission.Pass through described embodiment, power transfer unit
Speed changer can be integrated in（Gear housing）In, without independent bolt unit.
The advantage associated with configuration of the invention includes minimizing encapsulated space by simplified setting, passes through and reduces
Drive connection/united quantity between part minimizes parasitic drain, and makes to be thermally generated most by reducing number of components
Smallization.Another advantage PTU being integrated in speed changer is not need independent PTU fuel tanks, because speed changer can be with PTU
Share any lubricating fluid.
Brief description of the drawings
In conjunction with the following drawings, the present invention is only described by way of embodiment, wherein：
Fig. 1 is the top view of vehicle transmission system assembly；
Fig. 2 is the sectional view of front axle and PTU assemblies；
Fig. 3 is the sectional view of front axle and PTU assemblies, including case of transmission and take-off lever；
Fig. 4 is the cross section of differential mechanism and power transfer unit.
Embodiment
Fig. 1 is the top view of vehicle transmission system assembly.Fig. 1 illustrates the power unit for being connected to manual transmission 11（Hair
Motivation）10.Speed changer 11 includes case of transmission 7, and the case of transmission 7 can include differential casing 12 and gear housing
13, the differential casing 12 and gear housing 13 can be bolted together.Speed changer 11, which is connected to, to be contained in case of transmission 7
Differential mechanism 3（Shown in Fig. 2）.Differential mechanism 3 is connected to power transfer unit 8.Speed changer 3 and power is described in more detail below
Transfer unit 8.
Power transfer unit 8 is connected to drive rod 14 by universal joint.The drive rod 14 may include preceding drive rod
14a, center axis of traction 14b and rear drive rod 14c.Drive rod 14 may also include one or more spring bearings 15.The driving
Bar 14 is connected to shaft coupling 16 at rear axle.Specifically, in an illustrated embodiment, connector 16 be can intelligent locking many plates
Disengaging type shaft coupling.This connector can optionally make driving be bonded to rear axle and driving is separated with rear axle.Connection
Device 16 is connected to rear differential mechanism 17, to provide driving to trailing wheel.In an illustrated embodiment, before power transfer unit 8 is located at
Axle, and differential mechanism 17 is located at rear axle.It will be appreciated, however, that in rear engine vehicle, for example, power transfer unit 8 can
With positioned at rear axle, and differential mechanism 17 can be located at front axle.
Fig. 2 illustrates embodiments of the invention, wherein case of transmission 7 is removed, so as in more clearly describing
Portion's part.Fig. 2 illustrates the front axle 18 including left drive rod 18a and right drive rod 18b.Left drive rod 18a and right drive rod 18b
It is connected to the both sides of front differential mechanism 3.Differential mechanism 3 includes differential mechanism support 3a and differential mechanism ring gear 1.Differential mechanism support 3a connects
It is connected to power transmission ring gear 2.Power transmission ring gear 2 is positioned to engage with the little gear 4 of power transfer unit 8.Such as
Shown in figure, by this configuration, the sky that the associated part of the second axle occupies relatively small amount is delivered to from first axle with by power
Between, and especially, power transmission ring gear 2 is configured to expel differential mechanism support 3a, and in differential mechanism support 3a and moves
Independent shaft coupling is not needed between force-transmitting ring shape gear 2.In one embodiment, power transmission ring gear 2 can be connected
To differential mechanism ring gear 1.For example, power transmission ring gear 2 can be integrally formed with differential mechanism ring gear 1, Huo Zhechi
Wheel can be simply bolted together.
Fig. 3 illustrates one embodiment of the present of invention, and it includes case of transmission 7, transmission output gear 19, and poor
Connection example between fast device ring gear 1 and power transmission ring gear 2, in this case, the example is included part
The bolt 6 being bolted together.Transmission output gear 19 is configured to engage with differential mechanism ring gear 1.
Fig. 4 illustrates the cross section of the embodiment of vehicle transmission system assembly.As shown in figure 4, front-wheel drive spiral differential mechanism
Ring gear 1 surrounds other elements of differential mechanism 3.Power transmits ring gear 2 and is arranged on differential mechanism support 3a by bolt 6
On, bolt 6 passes through differential mechanism ring gear 1, by the hole in differential mechanism support 3a, and is screwed into be formed in power transmission annular tooth
In tapped blind hole 5 in wheel 2.Therefore, in an illustrated embodiment, power transmission ring gear 2 and differential mechanism ring gear 1 are straight
Connect and be bolted together, differential mechanism support 3a radial flange folder is between them.
Power transmitting gear 2 is positioned to engage with the power transmission little gear 4 of power transfer unit 8.Power transmits small tooth
One end of wheel 4 is arranged in the bearing in case of transmission 7.The other end of power transmission little gear 4 is configured to connect to drive
Lever from front wheel drive transmission by power to be transferred to rear axle.
The diameter of power transmission ring gear 2 and the diameter of transmission little gear 4 can be adjusted to realize that desired driving is compared.
From figure 2 it can be seen that driving power is transferred directly to power by front-wheel drive differential mechanism support 3a transmits ring gear 2,
It is then passed to and transmits the power transmission little gear 4 that ring gear 2 is engaged with power.Configured by this, front-wheel drive can be made
The cross-sectional width of differential mechanism ring gear 1 and power transmission ring gear 2 remains minimum value, wherein between two gears
There is no other connection or other part.Power transmission ring gear 2 can be the ring gear of taper or hypoid type.
Power transmission ring gear 2 can be bolted to differential mechanism support 3a or differential mechanism ring gear 1, in fabrication stage and differential mechanism branch
Frame 3a or differential mechanism ring gear 1 are integrally formed, or are attached to differential mechanism support by any other suitable fastener
3a or differential mechanism ring gear 1.
Differential mechanism ring gear 1 and power transmission ring gear 2 are arranged in parallel, and are arranged to occupy than biography powered by conventional energy
Pass the smaller area of unit.
The present invention may be used to existing two-wheel drive vehicle and adapt to a11wheel drive.This adaptation is related to may be not necessarily
Occur in the various constraints being always intended on the vehicle with four-wheel drive.For example, in two-wheel drive vehicle, it is not necessary to will drive
Dynamic power is delivered to the power transfer unit of another axle from a drive shaft.Therefore, the drive shaft week in two-wheel drive vehicle
The space enclosed generally will be occupied by other parts of vehicle.This this, it is important that be related to and adapt to any element of four-wheel drive and exist
Space as small as possible is occupied in vehicle.For example, it is infeasible to replace two wheel drive systems with conventional four-wheel drive system.
This replacement will be related to the configuration to vehicle and the significant change of layout.In order that the change needed for other elements of vehicle is minimum
Change, power transmission and power train assembly necessarily take up possible minimum volume, and are preferably held in former two wheel drive systems
Boundary in.Therefore, in the context of the present invention, the differential mechanism ring gear and power of combination is made to transmit the width of ring gear
Degree, which is minimized, causes the extension of existing speed changer and differential mechanism footprint area to minimize.
In addition, needing the power transfer unit of independent bolt unlike traditional situation, power transfer unit is integrated
Engaged in case of transmission and directly with the differential mechanism support or differential mechanism ring gear in transmission case body.Which reduce
Two-wheel drive vehicle is set to adapt to the quantity of the part needed for four-wheel drive.Be not necessarily power transfer unit provide independent housing and
The benefit of oil supply is micro- far better than the complexity of case of transmission 7 to be increased.
Claims (15)
1. a kind of vehicle transmission system, it includes the speed changer with differential mechanism, and the differential mechanism is arranged in case of transmission, institute
Stating differential mechanism has differential mechanism support and power transmission ring gear, and the differential mechanism support is provided with differential mechanism ring gear, and
And power transmission ring gear be directly mounted to the differential mechanism ring gear or with the differential mechanism ring gear one
Body is formed, and the vehicle transmission system also includes the power transfer unit with little gear, and the little gear is rotatably installed in
Engaged in the case of transmission and directly with power transmission ring gear.
2. vehicle transmission system according to claim 1, it is characterised in that the power transmission ring gear and the differential
Device support is integrally formed, and including forming the gear teeth on the side of the differential mechanism support.
3. vehicle transmission system according to claim 3, it is characterised in that the differential mechanism ring gear is helical annular tooth
Wheel.
4. the vehicle transmission system according to claim 3 or 4, it is characterised in that the differential mechanism ring gear is directly connected to
Ring gear is transmitted to the power, to cause two gears are orientated parallel.
5. the vehicle transmission system according to any one of claim 3 to 5, it is characterised in that the differential mechanism ring gear
It is connected directly to power transmission ring gear so that summation of the combined width of two gears no more than its respective width.
6. the vehicle transmission system according to above any one claim, it is characterised in that the selection power transmission annular
The diameter of gear, desired gear ratio is produced to be transmitted in the power between ring gear and power transmission little gear.
7. the vehicle transmission system according to above any one claim, it is characterised in that the power transmits ring gear
It is tapering annular gear.
8. the vehicle transmission system according to above any one claim, it is characterised in that the power transmits ring gear
It is hypoid ring gear.
9. the vehicle transmission system according to above any one claim, it is characterised in that the differential mechanism is front differential mechanism.
10. a kind of motor vehicles, it includes the vehicle transmission system according to above any one claim.
11. motor vehicles according to claim 11, it is characterised in that the motor vehicles are commerial vehicles.
12. a kind of method that two-wheel drive vehicle is changed into four-wheel drive, methods described includes：
The speed changer and differential mechanism of the two-wheel drive vehicle are replaced with the vehicle transmission system described in above any one claim；
The nonpowered axle of the two-wheel drive vehicle is replaced with drive shaft；And
The power transfer unit is connected to the drive shaft using drive rod.
13. a kind of external member being used for another axle that vehicle is delivered to from drive shaft is driven, the external member includes having differential
The speed changer of device, the differential mechanism is arranged in case of transmission, and the differential mechanism has differential mechanism support and dynamic force-transmitting ring
Shape gear, the differential mechanism support is provided with differential mechanism ring gear, and power transmission ring gear is directly mounted to institute
State differential mechanism ring gear or integrally formed with the differential mechanism ring gear, the external member also includes the power with little gear
Transfer unit, the little gear is rotatably installed in case of transmission and directly engaged with power transmission ring gear.
14. external member according to claim 13, it is characterised in that the power transmission ring gear and the differential mechanism branch
Frame is integrated, and including forming the gear teeth in the differential mechanism side face.
15. external member according to claim 13, it is characterised in that the differential mechanism ring gear is connected directly to described dynamic
Force-transmitting ring shape gear, to cause the combined widths of two gears no more than the summation of its respective width.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1522282.1 | 2015-12-17 | ||
| GB1522282.1A GB2545461B (en) | 2015-12-17 | 2015-12-17 | Compact vehicle drive train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107031391A true CN107031391A (en) | 2017-08-11 |
Family
ID=55311138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611146253.5A Pending CN107031391A (en) | 2015-12-17 | 2016-12-13 | Compact vehicle transmission system |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20170174079A1 (en) |
| EP (1) | EP3181392B1 (en) |
| CN (1) | CN107031391A (en) |
| GB (1) | GB2545461B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10120878B2 (en) * | 2015-03-02 | 2018-11-06 | Aerial Sphere, Llc | User interaction event data capturing system for use with aerial spherical imagery |
| WO2023233430A1 (en) * | 2022-06-02 | 2023-12-07 | Mahindra & Mahindra Limited | A drivetrain in a vehicle for achieving reduced wheelbase and a method thereof |
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2015
- 2015-12-17 GB GB1522282.1A patent/GB2545461B/en active Active
-
2016
- 2016-10-12 EP EP16193579.6A patent/EP3181392B1/en active Active
- 2016-11-18 US US15/355,120 patent/US20170174079A1/en not_active Abandoned
- 2016-12-13 CN CN201611146253.5A patent/CN107031391A/en active Pending
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| US4690238A (en) * | 1985-02-26 | 1987-09-01 | Dr. Ing. H.C.F. Porsche Aktiengesellschaft | Four-wheel drive arrangement for motor vehicles |
| US4650028A (en) * | 1986-02-03 | 1987-03-17 | Chrysler Motors Corporation | Viscous coupling apparatus for on-demand four wheel drive system |
| US4744435A (en) * | 1986-03-25 | 1988-05-17 | Volkswagen Ag | Motor vehicle having all-wheel drive |
| US20050087380A1 (en) * | 2003-10-24 | 2005-04-28 | Todd Brown | Variator in a four wheel drive |
| CN104797451A (en) * | 2012-11-20 | 2015-07-22 | 丰田自动车株式会社 | Torque display device and vehicle comprising same |
| CN104139696A (en) * | 2013-05-08 | 2014-11-12 | 通用汽车环球科技运作有限责任公司 | HYBRID POWERTRAIN AND MODULAR REAR DRIVE UNIT FOR the SAME |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201522282D0 (en) | 2016-02-03 |
| EP3181392A1 (en) | 2017-06-21 |
| US20170174079A1 (en) | 2017-06-22 |
| GB2545461B (en) | 2020-11-18 |
| EP3181392B1 (en) | 2021-04-14 |
| GB2545461A (en) | 2017-06-21 |
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